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Aug. l1, 9255.

1,548y900 B. A. PARKS VALVE STRUCTURE Filed Dec. 16, 1922 (itl Patented ll, 11925,

naar srnr BURR/ITT A. PARKS, F GRAND RAPIDS, MICHJEGAN.

VALVE STRUCTURE.

Application led December 16, 1922. Serial Ito. 607,314.

To all whom #may concern.

Be it known that l, BURRITT A. PARKS,

a citizen of the United States, residing aty Grand Rapids, in the county of Kent and State of Michigan, have invented new and useful lmprovements in Valve Structures, of which the following is a .specicationl The present invention relates to valve structures, particularly such as are employed in steam lines containing heating radiators; and its object is to provide improved means whereby the water of condensation accumulating in such lines may be automatically discharged. y

This and any other objects hereinafter appearing are attained by, and the invention finds preferable embodiment in, the structure hereinafter particularly described in the body of this specilication and illustrated by the accompanying drawings, inl which Figure 1 is a longitudinal sectional view of a valve structure taken on Va vertical plane corresponding to line 1--1 ot Figure 2;

Figure 2 is a transverse sectional view o1* the same taken on planes corresponding to line 2-2 of Figure 1; and

Figure 3 is a side view of a steam line containig a heating radiator and equipped with my valve structure.

ln steam lines containing heating radiators and the like, there is usually provided an extension 'o' the vertical steam-supply pipe or riser having means tor dlscharging the .water ot condensation accumulat ing therein into a return pipe into which return pipe the steam passes from the radiator usually through similar water-dischargin means. i

y object is to provide a unitarvstruc ture wherein automatic water-disc arging meansare combined with` the valve which controls the passage "of the steam through the radiator, thus dispensing' with certain parts hitherto employed in such steam lines Y and with the necessary connecting ot such Elli parts with other portions of the line.

ln the embodiment of the invention chosen tor illustration by the drawings and for detailed description in the body ot lthis specin Hcation, the steam line designated generally 1, contains a heat radiator 9, only two sections ot which are slnrvvna .l unitary structure or member 3 receives the steam into its chamber t through its inlet port 5 from the steam supply or `v6riser tl and discharges the steam through said chamber7s outlet port 7 into the heat radiator 2. ln the chamber lis a hollow valve 9 whose lower end carrying the ring paching 10 seats in the valve seat 12 and controls, as desired, the passage oi steam through the member 3 and into the radiator, being operated for this purpose by the handle 13 whose vertical shaft is threaded at 14: in the upper end ot said valve.

restricted by-pass in this valve structure is provided, the same as shown at 15 being desirably through the bottom of the valve 9 itself. A conical valve 16 inside the hollow valve 9 controls this by-pass being carried by a suitable heat-eXp-ansible and coldcontr'actible element 17 also located in the hollow valve 9, and operating by decreasing heat and consequent contraction to raise the valve 16 and open the by-pass, and by increasing `heat and consequent expansion to lower said valve and close the ley-pass. llt will be seen that if the valve 9 is closed to shut ofi the steam, and it water oondenses in the chamber 4. by thus lowering the heat, this lowering ot the heat will contract the element 17 and open the byi-pass valve 16 so that such water will How through the by-pass into theradiator and lthence out through the return pipe 18;.'and that when the steam is turned on, or the element 1'? otherwise becomes heated, the ley-pass will be closed. y

The invention being intended to be pointed out in the claims, is not to be limited to or by details of construction of the particular embodiment thereof illustrated by the drawings or hereinbeifore shown or described.

1. ln a steam line: a member having a chamber with steam inlet and outlet ports;

a steam-controlling valve in the chamber;

between said ports and having a lay-.pass therethrough; means manually operated for moving said valve to closed posltion and manuallyoperated tor moving the same to open position;

valve tor controlling the bypass g means carried by the hrstmentioned ist valve on the pressure side ot thebwpass valve and operated by decreasing heat opening and by increasing heat tor closing the lay-pass valve.

9. lin a steam line containing a heat radi#- ator: a member having a chamber with a team inlet port and steam outlet port to Q Luanco the radiator; a hollow valve in the chamber mentioned valve on the pressure side of the for controlling the passage of steam to the by-pass valve and operated by decreasing 10 radiator, and havingaby-pass therethrough; heat for opening and by increasing heat means manually o erated for moving said for closing the by-pass `valve.

valve to closed position and manually oper- In testmon whereof I have hereunto set l ated for moving the saine to open position; my hand at rand Rapids, Michigan, this a valve in the first-mentioned valve for conllth day of December, 1922.

trolling the by-pass; means in the rst- BURRITT A. PARKS. 

